In this study, impact of silicon (Si) application on wheat performance under drought stress is studied. Experimental soil was sandy clay loam with an average pH of 8.01, electrical conductivity (EC) of 2.36 dSm−1, and calcium carbonate (CaCO3) content of 2.16%. Soil was severely deficient in organic matter (<1%). Average extractable phosphorus (P) and potassium (K) concentration was 230 and 5.21 mg kg−1, respectively. Silicon potassium metasilicate (K2SiO3) was applied at the rate of 0 and 12 kg/ha with three canal water irrigation frequencies including two, three, and four under randomized complete block design (RCBD) factorial fashion with three replications. Results indicated that drought stress significantly reduced plant height, spike length, shoot fresh weight, and number of spikelets/spike, eventually enhancing wheat yield. Concentration of K+ in shoot (28.65 mg g−1) and grains (3.51 mg g−1) increased with Si application, which helped to maintain water potential in plant even under reduced moisture level in plants and soil, ultimately producing more yield and biomass under drought stress conditions.
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Silicon fertilization – A tool to boost up drought tolerance in wheat (Triticum aestivum L.) crop for better yield
Munir Ahmad Department of Soil Science, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi ArabiaCorrespondencemunirsoomra@yahoo.com
, Mohamed H. El-Saeid Department of Soil Science, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia, Muhammad Abrar Akram Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan, H. R. Ahmad Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan, Haseeb Haroon Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan & Abid Hussain Department of Soil Science, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
Munir Ahmad Department of Soil Science, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi ArabiaCorrespondencemunirsoomra@yahoo.com
, Mohamed H. El-Saeid Department of Soil Science, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia, Muhammad Abrar Akram Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan, H. R. Ahmad Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan, Haseeb Haroon Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan & Abid Hussain Department of Soil Science, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
, Mohamed H. El-Saeid Department of Soil Science, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia, Muhammad Abrar Akram Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan, H. R. Ahmad Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan, Haseeb Haroon Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan & Abid Hussain Department of Soil Science, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
Pages 1283-1291
Received 27 Feb 2014
Accepted 28 Jul 2014
Accepted author version posted online: 09 Nov 2015
Published online: 09 Nov 2015